America's National Oceanic and Atmospheric Administration is celebrating the one year anniversary of its Weather-Ready Nation project. Weather experts from across the United States have been working to improve the way the country reacts to extreme weather. They say scientific progress has made weather forecasts, or predictions, better than ever. But, they say the cost of severe weather on life and property is still too high.
NOAA says a new generation of equipment has already made its global numerical weather prediction system nearly three times faster in the past seven months. This is expected to improve NOAA's forecast models.
Scientists and weather experts have launched a similar effort in the Philippines. It is called Project NOAH -- the Nationwide Operational Assessment of Hazards.
Mahar Lagmay is the head of Project NOAH. He says his country needs high-resolution imaging to predict when and where natural disasters will strike.
"To be able to construct hazard maps you need very high resolution topography. To do the simulations of floods you do need high resolution topography."
He also says these images will be used to create smaller area maps, which will shape how people react to natural disasters.
"By doing local scale, or community scale maps, people can relate with the problem because they see their houses, they see their neighbor's houses, the bridge in their community, the river in their community in relation to the hazards - the flood hazards in particular."
Geologist Carlos Primo David also works with Project NOAH. He says the group depends on satellites, Doppler radar and hundreds of rain gauges across the country. He says the resulting forecasts are very detailed, and can even predict the intensity of rainfall.
The Philippine state weather agency used rainfall information from Project NOAH when Manila flooded in August. The weather agency also re-broadcast its warnings on the social networking website Twitter. And a color coded warning system was also put in place.
Mahar Lagmay says the project passed its first test. He says the government used the information to move people to safety.
"Relatively it was successful because what we wanted to avoid was mass death."
He says now the government has to get people to take severe weather events more seriously, and to actively prepare for the worst.
祈使句的结构
短语动词的被动语态形式
一般现在时代替过去时
用现在进行时表示将来的用法
现在完成时的定义
过去式和现在完成时的区别
分词作插入语的语法应用
一般现在时的用法
将来完成时的应用
动词let的用法
With的复合结构作独立主格
过去进行时的应用
被动形式表示主动意义
表示“据说”“相信”的词组
用助动词进行强调句类型
一般现在时表将来的情况
need/want/require/worth doing sth.
since和for的区别
现在进行时的应用
句子的种类
时态与时间状语
分词作补语的语法应用
分词作表语的语法应用
感叹句的结构
过去完成时的应用
主动形式表示被动意思的情况
一般现在时代替完成时
分词的时态
一般将来时的用法
动词的语态
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